Question about Outlook Express

1) Drag the folder in Outlook 2011 to my desktop to create an MBOX file.

2) Save the email itself as an eml file by dragging it to finder

3) Sending the emails to my IMAP server by creating a folder and dragging them, then synchronizing with the server

4) Sending the email as attachment

No matter what I do, if i open up the email in Apple Mail, Thunderbird, or even open it back up in Outlook 2011, I see no subject and no sender and often the emails are corrupted.

When viewing them in Thunderbird or Apple Mail I get the error message displayed "This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible."

These emails display just fine in Outlook 2011 (14.2.4), they range from recent emails to some over a decade old.  Because of this though I would never be able to move to Outlook for Windows, or any other email program, I also can't seem to forward emails as attachments from my archive on my computer.

Has anyone ever run in to this problem? I am hesitant to purchase a program like Emailchemy until I know the root cause of the issue and whether or not a program like that would fix the issue.

Thanks,

Drumtrip